WTS vs FELE vs LIQT vs MWA vs ERII

For growth investors, LiqTech International, Inc.

(LIQT) is the stronger pick with 13. 0% revenue growth year-over-year, versus -7. 1% for Energy Recovery, Inc. (ERII). Mueller Water Products, Inc. (MWA) offers the better valuation at 22. 0x trailing P/E (18. 6x forward), making it the more compelling value choice. Analysts rate Energy Recovery, Inc. (ERII) a "Buy" — based on 16 analyst ratings — the highest consensus in this comparison. The "better buy" depends entirely on your goals: growth investors should weight revenue trajectory, value investors should weight P/E and PEG, and income investors should weight dividend yield and streak.

On trailing P/E, Mueller Water Products, Inc.

(MWA) is the cheapest at 22. 0x versus Franklin Electric Co. , Inc. at 30. 8x. On forward P/E, Mueller Water Products, Inc. is actually cheaper at 18. 6x. The PEG ratio (P/E divided by earnings growth rate) is the most growth-adjusted single valuation metric: Mueller Water Products, Inc. wins at 0. 84x versus Franklin Electric Co. , Inc. 's 2. 50x — a PEG below 1. 0 traditionally signals the market is underpricing earnings growth.

Over the past 5 years, Watts Water Technologies, Inc.

(WTS) delivered a total return of +121. 2%, compared to -96. 1% for LiqTech International, Inc. (LIQT). Over 10 years, the gap is even starker: WTS returned +452. 2% versus LIQT's -90. 9%. Past returns do not guarantee future results, and the stock with the higher historical return may already have its best growth priced in.

By beta (market sensitivity over 5 years), LiqTech International, Inc.

(LIQT) is the lower-risk stock at 0. 52β versus Energy Recovery, Inc. 's 1. 53β — meaning ERII is approximately 192% more volatile than LIQT relative to the S&P 500. On balance sheet safety, Energy Recovery, Inc. (ERII) carries a lower debt/equity ratio of 5% versus 117% for LiqTech International, Inc. — giving it more financial flexibility in a downturn.

By revenue growth (latest reported year), LiqTech International, Inc.

(LIQT) is pulling ahead at 13. 0% versus -7. 1% for Energy Recovery, Inc. (ERII). On earnings-per-share growth, the picture is similar: Mueller Water Products, Inc. grew EPS 64. 9% year-over-year, compared to -15. 8% for Franklin Electric Co. , Inc.. Over a 3-year CAGR, WTS leads at 7. 2% annualised revenue growth. Higher growth typically commands a higher valuation multiple — check whether the premium P/E or P/S is justified by the growth rate using the PEG ratio.

Energy Recovery, Inc.

(ERII) is the more profitable company, earning 17. 0% net margin versus -51. 7% for LiqTech International, Inc. — meaning it keeps 17. 0% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: WTS leads at 19. 3% versus -50. 3% for LIQT. At the gross margin level — before operating expenses — ERII leads at 65. 2%, reflecting greater pricing power or product mix advantage. Stronger margins indicate durable pricing power, lower cost of revenue, or higher mix of software/services. They are one of the clearest signs of business quality.

The PEG ratio (forward P/E divided by expected earnings growth rate) is the most precise measure of undervaluation relative to growth potential.

By this metric, Mueller Water Products, Inc. (MWA) is the more undervalued stock at a PEG of 0. 84x versus Franklin Electric Co. , Inc. 's 2. 50x. A PEG below 1. 0 is traditionally considered the threshold for growth-adjusted undervaluation. On forward earnings alone, Mueller Water Products, Inc. (MWA) trades at 18. 6x forward P/E versus 25. 1x for Watts Water Technologies, Inc. — 6. 4x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for ERII: 37. 9% to $13. 00.

In this comparison, FELE (1.

1% yield), MWA (1. 0% yield), WTS (0. 7% yield) pay a dividend. LIQT, ERII do not pay a meaningful dividend and should not be held primarily for income.

For long-horizon retirement investors, Watts Water Technologies, Inc.

(WTS) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (low volatility (β 0. 98), 0. 7% yield, +452. 2% 10Y return). Energy Recovery, Inc. (ERII) carries a higher beta of 1. 53 — meaning larger drawdowns in market downturns, which matters significantly when you cannot wait years for a recovery. Both have compounded well over 10 years (WTS: +452. 2%, ERII: -11. 9%), confirming both are viable long-term holds — but the lower-volatility option typically results in less emotional selling during corrections. Retirement portfolios generally favour predictability over maximum returns. Consult a financial advisor before making allocation decisions.

Both stocks operate in the Industrials sector, making this a peer-level intra-sector comparison — the same macro tailwinds and headwinds will affect both.

WTS, FELE, MWA pay a dividend while LIQT, ERII do not, making them suitable for different income and tax situations. These fundamental differences mean investors should not choose between them on a single metric — the "better stock" depends entirely on which of these characteristics aligns with your investment strategy.